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built atop the C language bindings, and user programs can link with them as such: # Bytecode ocamlc -cc g++ llvm.cma llvmbitwriter.cma -o example example.ml # Native ocamlopt -cc g++ llvm.cmxa llvmbitwriter.cmxa -o example.opt example.ml The vmcore.ml test exercises most/all of the APIs thus far bound. Unfortunately, they're not yet numerous enough to write hello world. But: $ cat example.ml (* example.ml *) open Llvm open Llvm_bitwriter let _ = let filename = Sys.argv.(1) in let m = create_module filename in let v = make_int_constant i32_type 42 false in let g = define_global "hello_world" v m in if not (write_bitcode_file m filename) then exit 1; dispose_module m; $ ocamlc -cc g++ llvm.cma llvm_bitwriter.cma -o example example.ml File "example.ml", line 11, characters 6-7: Warning Y: unused variable g. $ ./example example.bc $ llvm-dis < example.bc ; ModuleID = '<stdin>' @hello_world = global i32 42 ; <i32*> [#uses=0] The ocaml test cases provide effective tests for the C interfaces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42093 91177308-0d34-0410-b5e6-96231b3b80d8
19 lines
788 B
OCaml
19 lines
788 B
OCaml
(*===-- llvm_bitwriter.mli - LLVM Ocaml Interface ---------------*- C++ -*-===*
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*
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* The LLVM Compiler Infrastructure
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*
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* This file was developed by Gordon Henriksen and is distributed under the
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* University of Illinois Open Source License. See LICENSE.TXT for details.
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*
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*===----------------------------------------------------------------------===
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*
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* This interface provides an ocaml API for the LLVM bitcode writer, the
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* classes in the classes in the Bitwriter library.
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*
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*===----------------------------------------------------------------------===*)
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(* Writes the bitcode for module the given path. Returns true if successful. *)
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external write_bitcode_file : Llvm.llmodule -> string -> bool
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= "llvm_write_bitcode_file"
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